fix(as-you-type): fixed removeChar not handling e.g. spaces properly

Fixes #49

src/index.js

@@ -335,11 +335,13 @@ function AsYouType( regionCode )
 {
 	this._regionCode = regionCode;
 	this._aytf = new i18n.phonenumbers.AsYouTypeFormatter( regionCode );
+	this._rawInput = '';
 	this._number = '';
 }
 
 AsYouType.prototype.addChar = function( nextChar )
 {
+	this._rawInput += nextChar;
 	this._number = this._aytf.inputDigit( nextChar );
 	return this._number;
 }
@@ -351,16 +353,16 @@ AsYouType.prototype.number = function( )
 
 AsYouType.prototype.removeChar = function( )
 {
-	var number = this._number;
-	if ( number.length > 0 )
-		this.reset( number.substr( 0, number.length - 1 ) );
+	if ( this._rawInput === '' )
+		return this._number;
 
-	return this._number;
+	return this.reset( this._rawInput.slice( 0, this._rawInput.length - 1 ) );
 }
 
 AsYouType.prototype.reset = function( number /* = '' */ )
 {
 	this._aytf.clear( );
+	this._rawInput = '';
 	if ( number )
 		for ( var i = 0, n = number.length; i < n; ++i )
 			this.addChar( number.charAt( i ) );

test.in/awesome-phonenumber/should-compile.ts

@@ -56,6 +56,30 @@ describe( 'general', function( ) {
 		expect( pn2.isPossible( ) ).to.be.true;
 	} );
 
+	it( 'should be able to format as-you-type with removeChar', function( ) {
+		var ayt = PhoneNumber.getAsYouType( 'SE' );
+		expect( ayt.addChar( '0' ) ).to.equal( '0' );
+		expect( ayt.addChar( '7' ) ).to.equal( '07' );
+		expect( ayt.addChar( '0' ) ).to.equal( '070' );
+		expect( ayt.addChar( '7' ) ).to.equal( '070-7' );
+		expect( ayt.addChar( '1' ) ).to.equal( '070-71' );
+		expect( ayt.addChar( '2' ) ).to.equal( '070-712' );
+		expect( ayt.addChar( '3' ) ).to.equal( '070-712 3' );
+		expect( ayt.removeChar( ) ).to.equal( '070-712' );
+		expect( ayt.addChar( '3' ) ).to.equal( '070-712 3' );
+
+		var pn1 = ayt.getPhoneNumber( );
+		expect( pn1.isValid( ) ).to.be.false;
+
+		expect( ayt.addChar( '4' ) ).to.equal( '070-712 34' );
+		expect( ayt.addChar( '5' ) ).to.equal( '070-712 34 5' );
+		expect( ayt.addChar( '6' ) ).to.equal( '070-712 34 56' );
+
+		var pn2 = ayt.getPhoneNumber( );
+		expect( pn2.isValid( ) ).to.be.true;
+		expect( pn2.isPossible( ) ).to.be.true;
+	} );
+
 	it( 'should be able to convert country code <-> region code', function( ) {
 		expect( PhoneNumber.getCountryCodeForRegionCode( 'SE' ) ).to.equal( 46 );
 		expect( PhoneNumber.getRegionCodeForCountryCode( 46 ) ).to.equal( 'SE' );